Higher Colleges of Technologies Geometry and Quadratics functions Exercise

there is 5 question and we have to choose just 5 and solve it step by step

there is 5 question and we have to choose just 5 and solve it step by step

there is 5 question and we have to choose just 5 and solve it step by step

General instruction: Solve any five questions.
1.
If U =
(i)
(ii)
(iii)
(iv)
(v)
{1,3,5,7,9,10,13,15,17,20} , A = {3,7,10,15} and B = {1,5,9,13,17,20}. Find
AUB
A⋂B
Ac
Bc
Ac U Bc
2.
3.
Find the value of the discriminant and describe the nature of the roots of quadratic
equation. Then solve the equation by using formula.
2𝑥2 + 7𝑥 − 11 = 0
4. Solve the simultaneous equations:
3x + 2y = 4
2x + y = 3
5. Find the sum of first n terms and the sum of first 5 terms of the geometric series
6.
What are the types of functions? Explain application of functions in business?